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Thermal shield turbine airfoil

  • US 20050232769A1
  • Filed: 04/15/2004
  • Published: 10/20/2005
  • Est. Priority Date: 04/15/2004
  • Status: Active Grant
First Claim
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1. A gas turbine airfoil comprising:

  • opposite pressure and suction sides joined together at chordally spaced apart leading and trailing edges and extending longitudinally from root to tip;

    an outwardly convex nose bridge bridging said pressure and suction sides behind said leading edge, and integrally joined to a complementary thermally insulating shield spaced therefrom to define a bridge channel therebetween;

    said shield includes said leading edge and wraps laterally aft around said nose bridge along both said pressure and suction sides; and

    a plurality of flow channels disposed behind said nose bridge for cooling said airfoil to said trailing edge.

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